Agnes Bousquier (@Aina)

40-years old embedded software engineer. Graduated in 2006 in electronics and signal processing from INP-ENSEEIHT (French engineering school). I have worked as a software engineer since my graduation, and specialized in basic software on critical environments (aeronautics, automotive)

Re: How to download a file through a RS485 link

Reply posted 4 years ago (09/17/2018)
Hi srtubi,I removed all the modbus protocol from my code, and the problem is still there. The only way I found to remove it was to use a local table to copy data...

Re: How to download a file through a RS485 link

Reply posted 4 years ago (09/05/2018)
Hi,I looked at the reception buffer I am filling in my UART Rx interrupt: data is OK in it. So the problem is happening when I am copying these data to another table...

Re: How to download a file through a RS485 link

Reply posted 4 years ago (09/03/2018)
Hello everyone,Next step in my adventures ;-)Now I manage to get the first Ymodem packet (the one with the name and size of the file). But when my computer send...

Re: How to download a file through a RS485 link

Reply posted 4 years ago (08/27/2018)
Because during product's life, we will have to remotely update our firmware. So we need a bootloader 

Re: How to download a file through a RS485 link

Reply posted 4 years ago (08/27/2018)
Thank you every one for your replies. I succeeded to make the ASCII sending from my board work every time :-) The problem was due to the fact that I short-circuited...

Re: How to download a file through a RS485 link

Reply posted 4 years ago (08/27/2018)
Seems like there is no flow control on my board, as I have only 2 wires connected to my computer :-(

Re: How to download a file through a RS485 link

Reply posted 4 years ago (08/27/2018)
luckily I am using an 8-bits modbus protocol :-) I am using the ST code your are mentionning to implement Ymodem on my board, and ExtraPutty to transfer the file....

How to download a file through a RS485 link

New thread started 4 years ago
Hello,I need to download a file on an STM32 through a half-duplex RS485 link. For the moment, it is using modbus (slave) to talk with a PC, and it is working fine.As...

Use this form to contact Aina

Before you can contact a member of the *Related Sites:

  • You must be logged in (register here)
  • You must confirm you email address